DE3323002A1 - Motor vehicle - Google Patents

Abstract

Due to the continually rising number of motor vehicles, the parking space available for them is becoming ever scarcer. In order to meet this problem, the invention proposes a motor vehicle, in particular a passenger motor vehicle, whose parking area can be reduced when the vehicle is not in use. According to the invention, a passenger compartment 10 of the passenger motor vehicle according to the invention can be folded up, specifically firstly two side walls 18 and then a rear wall 19 are folded against a floor trough 16, and a roof 20 is folded against a front wall part 17, and finally the floor trough 16 is folded upwards against the essentially upright front wall part 17. The wheels (rear wheels 12, front wheel 13) remain on the ground in this process. <IMAGE>

Description

description

The invention relates to a motor vehicle, in particular a passenger vehicle according to the preamble of claim 1.

With the steadily increasing number of motor vehicles As is well known, the storage room available for this is decreasing significantly. This appearance makes itself special in metropolitan areas due to rapidly decreasing parking areas noticeable. So it is becoming more and more difficult to find a suitable parking space. By looking for a parking space valuable time is lost especially on trips to work or shopping trips.

After all, garage problems often arise when buying a second car. An existing garage is sufficient usually no longer sufficient to accommodate the second car. The need to add another garage is due to the given size of a plot of land is often no longer possible. That leaves only the unsatisfactory way out, leaving a car on the road.

The invention is therefore based on the object of a motor vehicle in order to avoid the disadvantages mentioned at the outset to create, which can be put down simply and space-saving when not in use.

To achieve this object, the invention has the characterizing features of claim 1. As the passenger compartment usually the most voluminous part of a motor vehicle is, a reduction in size leads to a substantial reduction in the space requirement of the whole Motor vehicle. Such a downsizing of the passenger 2Q raums is particularly suitable for small vehicles, namely passenger vehicles.

According to the invention, the passenger compartment is designed in such a way that that all of the walls serving to form the same and the floor pan belonging to the passenger compartment in approximately one level can be brought. For this purpose, the parts forming the passenger compartment are connected to one another by hinges or joints tied together.

QQ In an advantageous embodiment of the invention, two side walls and a rear wall are attached to the floor pan with hinges. A roof is also attached to the front wall part with hinges. The latter, in turn, is articulated to the floor pan. With this connection of the individual parts with one another, the passenger compartment is essentially folded in two

Stages. There are namely the two side walls and the rear wall in the plane of the floor pan and the roof in the To pivot level of the front wall part. Then the front wall part and the floor pan are to be brought into one level. In this way, an extremely clear dismantling or assembly of the vehicle is possible.

Those walls of the passenger compartment that have doors are designed in a special way. These exist namely from a closed, load-bearing frame that completely surrounds the doors. Preferably the two are Side walls and the rear wall of the passenger compartment are designed in this way. These walls de.mnach have external hinges to attach the same to the floor pan and inner hinges to attach the doors. For dismantling or When installing the passenger compartment, the walls can be folded down as a unit when the doors are closed, i.e. with the doors and frame. When the vehicle is ready for operation, the frames of the doors form a three-dimensional structure, which is sufficient Ensures stability of the passenger compartment, even when all doors are open. The frames are Sufficiently dimensioned in terms of their stability to allow the doors to be opened and closed smoothly in all conceivable ways Situations to ensure.

On those that are next to each other in the assembled state of the vehicle Edges of the walls of the same are preferably arranged in a form-fitting interlocking connection members. The latter can be made by pins that engage in corresponding holes, or by tongue and groove connections be formed by interlocking profiles of the frame. Such connecting organs come after a proposal of the invention when engaged when assembling the passenger compartment, the side walls, the rear wall and

the roof can be pivoted together. Through the connection 35

The frames of the walls, the floor pan and the organs will be

j ^ front wall part to a largely invincible Passenger compartment connected. In particular for sealing, but also to avoid rattling noises are the adjacent edges of the individual parts or walls of the passenger compartment preferably made of rubber

provided seals. The seals can be designed so that they are when the passenger compartment is folded protect the edges of the individual parts against possible damage.

At a seam, i. H. at a point where the

The two most recently installed or first dismantled parts of the passenger compartment can be released by hand Liaison bodies provided. Such organs can lever clamps, bayonet locks or the like. Easily by hand 15th

be detachable connections. These connecting members are expediently attached to the inside of the passenger compartment. The passenger compartment can then only be dismantled, i.e. opened, if previously from inside the vehicle the connecting organs have been loosened. This measure prevents unauthorized access to the passenger compartment protected from the outside.

Also for the purpose of theft protection are the

Parts of the passenger compartment and especially those not ' 25th

load-bearing parts, such as the doors and the roof, made of a solid material, for example plywood, plastic or made of aluminum.

According to a further proposal of the invention, the a a

Foldable seats arranged inside the passenger compartment. In addition, the almost horizontal seat is on the one hand It is held by a foldable support on the bottom of the floor pan and on the other hand by a foldable backrest on the roof. When the roof is folded down when the vehicle is dismantled, the seat surfaces are in this way

Seats can be lowered and the support connected to the floor pan can be folded down. Can be used to suspend the seats the backrest either made of an elastic, resilient material or one or more spring elements be hung on the roof. These simple measures can lead to a not inconsiderable increase in driving comfort of the motor vehicle.

In a preferred embodiment, the inventive Motor vehicle a three-wheeled chassis. This landing gear consists of two parts, namely one rear Fahrwerkstei1 with two rear wheels and a front Fahrwerkstei 1 with a drivable front wheel together. Such a three-wheel chassis guarantees the motor vehicle according to the invention good maneuverability

with a simple structure of the steering and the drive. As especially with an easily assembled or disassembled Motor vehicle a low weight plays an important role, a three-wheel chassis can be advantageous here insert.

The rear axle part of the motor vehicle has a training that meets the requirements; namely, the rear axle part is designed as a U-shaped axle rocker. The two rear wheels of the vehicle are attached to the free ends of two parallel arms of the axle swing arm. One The axis of rotation connecting the two arms of the axle rocker is rotatably mounted at the front under the floor pan. The floor pan thus represents a link between the rear axle part and the front wall part, both of which are hinged to it

. . .
are stored.

In addition, according to the invention, a support element is arranged on each side of the passenger compartment. These two support elements are articulated between the axle swing arm and the front wall part. This will add to each side

the passenger compartment an articulated parallelogram made of a support member, the floor pan, the front wall part and the axle swing arm educated. Through a targeted arrangement of the hinge or pivot points on the front wall part, the floor pan and the axle rocker as well as a corresponding length of the supporting members are the sequence of movements and the End positions of these parts are set. The sequence of movements when folding the floor pan is expedient and the front wall part is chosen such that when the floor pan is folded up from the horizontal into the vertical the axle rocker is also pivoted in the opposite direction into a vertical position without In doing so, however, the two rear tires leave the ground. This sequence of movements in the second stage of dismantling of the vehicle has the advantage that the relatively heavy rear axle part with the axle swing arm and the rear tire does not need to be lifted at the same time. So in principle there is only the floor pan here to fold down with the side walls and the rear wall folded against it. While the floor pan is being folded up at the same time the front wall part, which is slightly inclined from the vertical, is erected in a likewise vertical position. The passenger compartment of the vehicle can therefore be folded up and folded up at the same time. This means that the footprint of the Vehicle and thus its footprint reduced many times over. The center distance is shortened, with the tires however still remain on earth. As a result, the motor vehicle can even be folded up maneuver easily, namely still move manually. This means that the vehicle can be stored in a garage to be accommodated together with a larger motor vehicle, by arranging it next to or in front of a car. The space required for the folded Motor vehicle goes only insignificantly over that of a motorcycle out.

In a particularly advantageous embodiment of the invention Energy storage organs are provided for easy movement of the parts to be erected, in particular those Parts that are due to their own weight by one person

can no longer be moved without effort. For this purpose 5

are between the floor pan and the rear axle part, namely the axle swing, one or more springs are arranged, which in the operational state of the passenger vehicle : stuff are biased. When folding up the floor pan, when the latter moves apart from the axle swing arm, the springs release the previously stored energy and thus at least initially support the folding up the floor pan with the side walls and the rear wall. The springs here come with a relative large spring travel, i.e. torsion springs, into consideration. The number of springs required depends on the weight the floor pan that can be folded up. In any case, however, it must be ensured that the floor pan is operated by one person is easy to fold.

An energy storage element can also be used on the side walls and the rear wall be assigned. This is expediently to be arranged between the walls and the floor pan. It is particularly advantageous to use the energy storage organ here

as part of the hinge, namely as a 25

Torsion spring bar. This (elongated) rod also forms the hinge pins of all the hinges of a Wall, with angled ends of these hinge pins on the wall in question on the one hand and on the edge of the floor pan on the other hand support. A bias of a sol-

Chen spring takes place when folding the side walls or the rear wall, so that these walls easily through the support the torsion springs are erectable. If necessary, an energy storage element can also be assigned to the roof. be net.

The motor vehicle is driven directly by an engine on the front wheel. As an engine comes for the motor vehicle both an internal combustion engine and an electric motor in question. The engine and front wheel are covered by a load-bearing cover

kung partially surrounded. This forms together with the motor 5

and the front wheel is the drive unit.

The drive unit is movable with the rest of the vehicle, namely with the front wall part of the passenger compartment tied together. The vehicle is steered by rotating the drive unit in relation to the passenger compartment. For this purpose, the connection is designed in such a way that it rotates the drive part by an approximately upright position or slightly inclined axis of rotation allows. At this connection, which is preferably designed as a turntable, attacks the steering of the vehicle. The longitudinal movement is transmitted from the steering wheel from the passenger compartment through a drive connection. This can, for example, consist of a belt, chain or gear drive, however can also be formed from one or more Bowden cables.

The wheel lock or steering angle in the case of the invention Vehicle is at least 180 °, i.e. H. the front wheel is in the opposite direction from a straight ahead driving position

Rotatable in directions across the rear wheels. Due to the -25

This can usually be a relatively large steering angle

elongated drive part protruding from the front wall part of the motor vehicle in the folded state of the same transversely, that is, under the raised floor pan be swiveled. The drive part thus makes itself 30

hardly noticeable when the vehicle is parked.

Finally, the invention also proposes with an internal combustion engine Equipped vehicles propose to detach the fuel tank from the vehicle. When not in use the vehicle can be the tank in a separate place

store, whereby the (folded) motor vehicle can be parked or placed in a location which, due to legal regulations, is usually not suitable for vehicles with an internal combustion engine is suitable. The vehicle is then allowed to be transported by mass transit will.

Further features of the invention relate to the structural design of the passenger compartment and the mounting of the axle rocker.

An embodiment of the invention is described below explained in more detail with reference to the figures in the drawing.

Show it:
15th

1 shows a side view of an operational vehicle on a reduced scale,

FIG. 2 is a plan view of the operational vehicle according to FIG. 1,

3 shows a front view of the operational vehicle according to FIG. 1,

an exploded perspective view the passenger compartment,

a side view of the vehicle according to FIG. 1 with folded side walls and partially folded back wall,

6 shows a side view of the vehicle according to FIG. 5 with the walls completely folded in

and the roof is folded in, with the roof partially opened

raised floor pan,

25th Fig. 4th Fig. 5 30th

submitted later )

-22-

7 shows a side view of the vehicle with the passenger compartment completely reduced and folded up;

8 shows a side view of the vehicle according to FIG. 7, 5

FIG. 9 is a plan view of the motor vehicle according to FIG. 7,

Fig.10 shows a cross section through the passenger compartment with complete folded side walls, folded seats and folded back wall,

11 is a side view of the front area of the passenger compartment on a larger scale,

12 shows a section XII-XII through one side of the passenger compartment according to FIG. 11,

13 shows a section XIII-XIII through one side of the passenger compartment according to FIG. 11 with the side wall folded in,

14 shows a side view of a seat when the motor vehicle is ready for operation,

15 is a side view of a folded seat,

16 shows a side view of the motor vehicle in the area

the articulated connections between the floor pan, front wall part and axle swing arm on an enlarged scale, 30th

17 shows a section XVII-XVII in the lateral area of the passenger compartment of the motor vehicle,

18 shows a representation of a seal between adjacent Frame of two parts of the passenger compartment on an enlarged scale,

- ■ - ■ - - - ' [near rich

-23-

19 is a side view of the arrangement of a torsion coil spring between the floor pan and the axle pivot ^ cje,

20 is a plan view of the arrangement of the torsion 5

coil spring according to FIG. 19,

21 is a side view of an arrangement of a spacer block between a leaf spring and the Axle swing arm,

22 is a side view of the spacer block according to FIG fig. 21 on an enlarged scale,

Figure 23 is a side view of an arrangement of a push 15

damper between the floor pan and the axle swing arm,

Fig. 24 is a side view of an arrangement of a torsion bar spring between a side wall and 20

the floor pan,

25 shows a longitudinal section through the passenger compartment in the area of the steering on an enlarged scale,

26 shows a detail XXVI of the steering gear according to FIG

of FIG. 25 on an enlarged scale,

FIG. 27 shows a plan view of a dashboard of the steering according to FIG. 25,

28 is a partial side view of an upper region of the passenger compartment;

29 shows a detail of a lock between the 35th

Roof and a side wall of the passenger compartment,

and

Fi ^. 3o a detail of a bracket for connection between the roof and the rear wall of the passenger compartment.

The present embodiment of the invention relates on a passenger vehicle with a passenger compartment 10 that can accommodate two people. The passenger compartment shows this 10 of the passenger vehicle has two seats 11. This passenger vehicle has a three-wheeled vehicle Chassis with two rear wheels 12 and one front wheel 13.

The chassis is designed in two parts, namely consists from a rear chassis part (from an axle swing arm 46 and the two rear wheels 12), which is assigned to the passenger compartment 10. This forms the front chassis part 1 drivable front wheel 13 which is part of a drive unit 15. The latter is rotatable with the passenger compartment 10 connected to the steering of the passenger vehicle.

The passenger compartment 10 is formed from a lower floor pan 16, a front wall part 17, two side walls 18, a rear wall 19 and a roof 20. In cross section, the passenger compartment 10 has an approximately square shape, ie the side walls 18 lie in parallel upright planes, and the roof 20 and the bottom walls 16 ² ^ lie in parallel horizontal planes (Fig. 3). In the longitudinal section, the passenger compartment 10 has an asymmetrical trapezoidal shape (FIG. 1). The rear wall 19 and a front wall 21 of the front wall part 17 are inclined, converging towards the roof 20, but with different inclinations. This is because the front wall 21 has a considerably greater inclination than the rear wall 19.

Some of the elements of the passenger compartment 10 consist of several individual parts (Fig. 4). The two of the same surface Side walls 18 are composed of a rigid support frame 22 and a door 23. The doors 23 point in the upper area a window 24 each. The doors 23 are with the

frame 22 connected by hinges 25 to a respective front strut inclined slightly in the direction of travel. In order to the doors 23 of the side walls 18 can be opened in the direction of travel of the passenger vehicle. Through the linkage the doors 23 to the forwardly inclined struts of the support frame 22 is achieved that the open doors 23 below be kept open to the influence of gravity.

The rear wall 19 is just like the side walls 18

designed in two parts. It consists of an essentially IO

Chen rectangular support frame 26 in which a rear flap 27 is mounted. The rear flap 27 is secured by hinges 28 arranged on the upper, horizontal strut of the support frame 26 in a foldable manner. The rear flap 27 also has a window 29

up, in about the upper half of the same. 15th

The floor pan 16 here consists of a flat floor plate 30 on which a continuous, upright apron 31 is arranged is. The skirt 31 surrounds the side edges and the

Rear edge of the bottom plate 30. The front edge of the bottom 20

Plate 30 therefore runs out freely.

The side walls 18 and the rear wall 19 are pivotably connected to the floor pan 16. For this purpose, the support frames 22

of the side walls 18 on their underside with the upper, free-25

The edge of the lateral areas of the apron 31 is connected by two hinges 32 each. Also the lower, horizontal one Part of the support frame 26 of the rear wall 19 is connected to the skirt 31 via two hinges 32, but with the upper, transverse edge of the same.

The front wall portion 17 of the passenger compartment 10 exists next to the inclined, rectangular front wall 21 from an adjoining at the lower edge of the front wall 21, approximately

transverse bottom piece 35 and two opposite 35

lateral side pieces 36. The front wall 21, the floor

piece 35 and the two side pieces 36 form a unit, are therefore firmly connected to each other. The side pieces 36 lie in the planes of the side walls 18. The bottom piece 35 and the side pieces 36 are expediently and the front wall 21 of the front wall part 17 is formed from a one-piece frame 38. The rectangular front wall 21 has a likewise rectangular windshield 34 approximately in its upper half.

The roof 20 of the passenger compartment 10 is formed in one piece with a rectangular base area. It's by hinges 33 is pivotably articulated on the upper, horizontal edge of the front wall 21 of the front wall part 17.

The floor pan 16 and the front wall part 17 of the passenger compartment 10 are connected to one another by two lateral joints 37 (FIGS. 11 and 12). The joints 37 are U-shaped educated. They are between the side pieces 36 of the front wall part 17 and the side walls of the apron

31 of the floor pan 16 is arranged.
20th

On the underside of the roof 20, four vertical pins 39 are arranged in the rear corners of the same. Latter enter correspondingly designed bores 40 on the upper side of the support frames 22 and 26, respectively. When ready for use The pins 39 ensure a positive locking of the side walls 18 and the passenger vehicle Rear wall 19 opposite the roof 20 (Fig. 28). Stops 41 arranged under the roof 20 ensure that it is in accordance with regulations Positioning of the side walls 18 and the rear wall 19 opposite the roof 20 for unhindered entry of the Pins 39 in the bores 40 (Fig. 29). That with the rear edge loosely on the upper edges of the side walls 18 and the roof 20 placed on the rear wall 19 is secured against unintentional lifting by means of two manually operated clamps 42 to secure. The brackets 42 are attached to the side of the upright struts of the support frame 26 of the rear wall 19

and engage positively in a correspondingly arranged and designed counterpart 43 under the roof 20 (Fig. 30).

The support frame 22 and 26 and the frame 38 are made of square profiles. These can be made of steel or consist of aluminum. The area spanned by the support frames 22, 26 or by the frame 38 is provided with a filling to form the individual walls of the passenger compartment The filling can be made of water-resistant plywood, plastic, Aluminum or sandwich elements made of several of the aforementioned materials. In this way you can the roof 20, the base plate 30 or the skirt 31 of the base pan 16 can also be assembled.

The adjacent walls of the square tube of the support frame 22, 26 and the frame 38 of adjacent parts or walls of the passenger compartment 10 are provided with a continuous Seal 44 is provided (Fig. 18). The latter is in grooves 45 of the surfaces of the square tube to be sealed against one another

let in, but can also be glued directly onto the surfaces to be sealed against one another. In addition to a seal Against moisture and drafts, the seals 44 should also prevent rattling noises between the individual parts or

Prevent walls of the passenger compartment 10. 25th

A pivotable axle rocker 46 is arranged under the base plate 30 of the base pan 16 (FIGS. 5-9). The axle swing 46 is approximately U-shaped with two parallel, in the longitudinal direction of the passenger vehicle

lying arms 47 passing through a transverse axis are connected to each other. The two arms 47 are on opposite sides next to the floor pan 16. To the A rear wheel 12 is arranged in each case on both free, rear ends of the arms 47. The one in the direction of travel of the passenger vehicle The front axle 48 is on two at a distance from each other in the front area under the floor plate

30 arranged bearing blocks 49 rotatably mounted. At this point, the transverse axis 48 forms the axle rocker 46 a further pivot point 50 on the floor pan 16.

On each side of the passenger vehicle is between the Front wall part 17 of the passenger compartment 10 and the axle swing arm 46 a leaf spring 51 is arranged (Fig. 16 and 17). The two Leaf springs 51 are on the one hand in the rear area under the bottom piece 35 of the front wall part 17 and on the other hand at a distance from the fulcrum 50 of the axle rocker 46 mounted on the underside of the arms 47, namely through in the transverse direction of the passenger vehicle opposite bearing points 52 under the base piece 35 and bearing points 53 under the arms 47. The bearings 52, 53 form together with the pivot point 50 and a pivot point 54 of the

direct 37 on each side next to the passenger compartment 10 a parallelogram lying in an upright plane.

The leaf springs 51 are arranged next to the passenger compartment 10 that they are below the lateral ends of the axle

Support 48 of the axle rocker 46. This increases the pivoting path of the axle rocker 46 in the direction of the base plate 30 limited. A more or less large deflection of the leaf springs 51 depending on the load on the passenger compartment 10 leads to a pivoting of the axle rocker 46 relative to the bottom wall 16, that is to say to a deflection.

In order to prevent the rear wheels 12 from being attached to the floor pan 16 or to the protective plates 56 arranged thereon at high Apply load is the distance between the axis

48 and the leaf springs 51 can be enlarged. For this purpose, a spacer block 55 is rotatable on each end of the axle 48 stored (Fig. 21). The two identically designed spacer blocks 55 have a cuboid shape with square ones Side faces. The side surfaces have an eccentric through hole 57 for mounting the spacer blocks 55 on axis 48. The four equally large outer surfaces

Chen 58 of the spacer block 55 point to the center line of the Through hole 57 each have different distances on (Fig. 22). Through 90 ° rotations of each spacer block 55 on the axis 48 are different outer surfaces 58 can be brought to bear against the leaf springs 51. As a result, the distance between the leaf springs 51 and the axis 48 is the Axle rocker 46 or its pivot point 50 adjustable, namely in four stages. To improve the spring effect the spacer block 55 is made of an elastic material, in particular hard rubber.

A folding up of the passenger car of this embodiment essentially takes place in two steps. First are from inside the passenger compartment forth the brackets 42 between the rear wall 19 and the roof

20 to be solved manually. After this, the roof 20 can be slightly

are raised to release the positive connection through the pins 39 and the holes 40 between the roof 20 on the one hand and the two side walls 18 and the rear wall 19 on the other hand. Then the two Sei-20

ten walls 18 are folded one after the other against the floor pan 16, in an approximately horizontal plane, parallel to the base plate 30. The rear wall 19 can then be folded onto the side wall 18 that was folded over last,

also in an approximately horizontal plane (Fig. 10) 25th

So that the rear part of the passenger compartment 10 with the hinged to the floor pan 16 side walls 18 and the Rear wall 19 folded up.

So that the two seats 11 when folding the rear KH

Do not disturb part of the passenger compartment 10, they are collapsible. For this purpose, the seats 11 are fastened between the base plate 30 and the roof 20 in the passenger compartment 10. Every seat 11 consists of a support 59, a seat 60 with

a padding 61, a backrest 62 and a spring 35

element 63. Hinges 64 connect the support 59 to both the base plate 30 and the seat 60. The

Backrests 62 can be hung with their spring elements 63 in an eye 65 attached under the roof 20. At the When the passenger vehicle is ready for operation, the support 59 is folded approximately perpendicular to the base plate 30. the

Seat 60 with upholstery 61 takes approximately a 5

horizontal or slightly inclined backward position, with it on its front by the support 59 and on its The rear side is held by the backrest 62 (FIG. 14), the spring elements 63 allow an "extension" or. "Shortening" of the backrest 62, the seat surface 60 pivoting about the upper hinge 64, that is to say its inclination changes. The backrest 62 is here largely made of a foldable or elastic material, in particular one Fabric made. It therefore takes in folded State of the seats 11 only take up relatively little space. To get together

Menfalten the seats 11 are only their spring elements 63 to hang out of the two eyes 65 under the roof 20. The seat surface 60 is thereby on the bottom plate 30 of the Lower the floor pan 16 by folding down the support 59 into a likewise horizontal position. The seat 60 with the

Padding 61 and the support 59 are then located in a space-saving manner in the plane of the base plate 30 (FIG. 15).

To the folding of the side walls 18 and the rear wall 19 to make it easier, the hinges 25 and 28 are

special hinge pin 66 is provided. This is designed in the form of a torsion bar spring with an elongated, horizontal rod that takes on the hinge pin function. The free ends of the rod are angled in opposite directions as stops 67. A stop 67

each hinge pin 66 is supported on the side walls 18 or on the rear wall 19, while the second stops 67 of each hinge pin 66 are supported on the skirt 31 of the floor pan 16. (Fig. 24). The one as a torsion bar spring formed hinge pins 66 are relaxed when the walls of the passenger compartment 10 are erected. Under the weight of the two side walls 18 and the rear wall 19 at

When they are folded in, the hinge pins are pretensioned 66, which makes it easier to erect the folded walls.

In a second stage, the floor pan 16 of the passenger compartment 10 is folded up with the side walls 18 and the Rear wall 19. For this purpose, the complete floor pan 16 with the walls lying on it is to be pivoted up about the pivot point 54. Due to the parallelogram guides of the leaf springs 51, when the floor pan 16 is pivoted up, the Axle rocker 46 in the opposite direction (Fig. 6). When the floor pan is fully folded up into the vertical position 16, the axle rocker 46 also assumes a vertical position. The originally inclined front wall part 17 with the front wall 21 is when the floor pan 16 is folded up

at the same time been erected so that this is also almost upright (Fig. 7-9). The floor pan 16 that Side walls 18, the rear wall 19, the roof 20 and the front wall 21 are now approximately in one plane in front of one another (Fig. 10). When the floor pan 16 is folded up, the axle rocker 46 is pivoted by approximately 180 ° with respect to the same, is therefore located in the opposite direction partially under the base plate 30 of the base pan 16. As a result When the floor pan 16 is folded up, both the front wheel 13 and the two rear wheels 12 remain on the floor. The collapsed passenger vehicle can thereby still move on the wheels.

A particularly space-saving arrangement results when

the elongated drive unit 15 by 90 ° from its longitudinal 30

direction under the bottom piece 35 of the front wall part 17 pivoted becomes (Fig. 9).

In order to facilitate folding up the floor pan 16 with the side walls 18 and the rear wall 19, are between the Floor pan 16 and the axle rocker 46 also torsion springs, namely torsion coil springs 68 are arranged. Each-

because a torsion coil spring 68 lies in the two End areas of the axle 48 between the floor pan 16 and the axle rocker 46. The mounting of the spring bodies of the torsion coil springs 68 takes place on the axis 48. The two ends of each torsion coil spring 68 are supported on the one hand below the floor pan 16 and on the other hand on the arms 47 of the axle rocker 46. When the passenger vehicle is ready for operation the torsion coil springs 68 are pretensioned by the weight of the passenger compartment 10 (FIGS. 19 and 20). the Torsion coil springs 68 relax when the floor pan 16 is raised to make it easier to fold it up.

In the present embodiment are between the axle rocker 46 and the floor pan 16, two lateral shock absorbers 69 are arranged. One side of the latter is at the bearing point 53, namely where the leaf springs 51 are connected to the axle rocker 46, articulated. On the other On the other hand, the shock absorbers 69 are mounted on the floor pan 16 from the outside next to the lateral areas of the apron 31, and although it is also articulated in a bearing 70 (FIG. 23). The relative position of the bearings 70 to the bearing points 53 is dependent selected from the length of the shock absorbers 69 so that their distance both when folded up and when folded down Floor pan 16, d. H. is roughly the same for an operational or folded passenger vehicle, and that the shock absorbers can "swing through" when the floor pan 16 is folded up without dismantling. First and foremost, serve the shock absorbers 69 naturally for damping chassis shocks during the operation of the passenger vehicle. In addition, worry they for a gradual, equalizing pivoting movement

the floor pan 16 and hold it if necessary in its folded-up position. Dropping the floor pan 16 or self-acting Movements of the same are thus avoided. If necessary Additional locking elements can be provided between the floor pan 16 and the front wall part 17, which these in Lock together in the folded state.

The drive unit 15 has in this embodiment one serving as a drive for the passenger vehicle

Internal combustion engine 71 on. The latter drives directly or via an intermediate (not shown in the figures) Transmission to the front wheel 13 by means of a chain 72. The engine 71 and the front wheel 13 are on one bearing cover 73 stored. A fuel tank 74 is removably mounted on the outside of the cover 73.

The entire drive unit 15 is in relation to the passenger compartment 10 by an essentially upright or in the longitudinal direction slightly inclined axis of rotation 75 rotatable. To do this, go to IO

of the cover 73 extending in the longitudinal direction of the axis of rotation 75 Steering tube 76 fixedly arranged. At opposite At the ends, the steering tube 76 is mounted so that it can rotate with respect to the passenger compartment 10, in each case with a roller bearing 77

on the bottom piece 35 and a bearing traverse 78 of the front 15

wall part 17. Operating elements are through the hollow steering tube 76 can be guided from the drive unit 15, in particular the internal combustion engine 71, into the passenger compartment 10. In addition, the steering tube 76 is used to heat the passenger compartment 10 by warming air from the internal combustion engine 71 through the hollow steering tube 76 can get into the passenger compartment 10.

The drive unit 15 is rotated relative to the passenger compartment 10 about the axis of rotation 75 of the steering tube 76

a steering of the passenger vehicle. In addition, the interior is 25

Ren of the passenger compartment 10 in front of the left seat 11, a steering wheel 79 is arranged. The latter is mounted on a dashboard 80. The transfer of the steering movement from the (lateral) steering wheel 79 to the (central) steering tube 76 takes place here through

a chain drive. For this purpose, the steering wheel 79 is under -30

half of the dashboard 80 is assigned a pinion 81. A chain 83 connects the pinion 81 to the sprocket 82.

So that the steering wheel 79 and the dashboard 80 when folded of the passenger compartment 10 do not interfere, the former is 35

can be lowered together with the dashboard 80 onto the bottom piece 35 of the front wall part 17. For guiding the valve

A guide rod 84, which runs parallel to the steering tube 76, is used to lower the board 80 and the steering wheel 79 is arranged between the bottom piece 35 and the bearing traverse 78. On this the dashboard can be 80 in move the height and lock in any height position with a T-screw 85. To the chain drive To be maintained between the steering wheel 79 and the steering tube 76 at all times, the chain wheel 82 on the steering tube 76 must also be maintained Can be moved lengthways, but not rotated. A tongue and groove connection 86 between the steering tube 76 and the one mounted on it Chain wheel 82 ensures a drive and thus a rotation of the steering tube 76 about the axis of rotation 75 in spite of the Height adjustment (Fig. 2-6).

The steering range of the trained in the manner described

th steering of the passenger vehicle is starting from the longitudinal position of the drive unit 15 corresponding to driving straight ahead 90 ° in each case in opposite directions Directions. The front wheel 13 is in a transverse position both when the steering is turned left and right

can be brought to the two rear wheels 12.

Meissner & Bolte

- patent attorneys

Applicant:

Wolfgang Vogel Dipl.-Ing. Amselweg 7

2803 Weyhe-Leeste

- 3b- Bremen, June 24th 1983/9119

B e ζ u g ζ calibrated list

10 Passenger compartment 11 Seat 12th Rear wheel 13th Front wheel 15th Drive unit 16 Floor pan 17th Front wall part 1 18th Side wall 19th Back wall 20th roof 21 Front wall 22nd Support frame 23 door 24 window 25th hinge 26th Support frame 27 Back flap 28 hinge 29 window 30th Base plate 31 apron 32 hinge 33 hinge 34 Windshield 35 Bottom piece 36 Side piece 37 joint 38 frame 39 Pen

40 Bohriirui

41 stop

42 bracket

43 counterpart

44 Seal

45 groove

46 axle swing arm

47 arm

48 axis

49 bearing block

50 pivot point

51 leaf spring

52 depository

53 depository

54 Dren point

55 spacer block

56 mudguard

57 through hole

58 exterior surface

59 support

60 seats

61 upholstery

62 backrest

63 spring element

64 hinge

65 eye

66 hinge pins

67 stop

68 Torsion coil springs:

■: ύ

3323002 Shock absorbers List of Reference Numbers - cont. camp 69 Internal combustion engine 70 chain 71 cover 72 Fuel tank 73 Axis of rotation 74 Steering tube 75 roller bearing 76 Storage traverse 77 steering wheel 78 dashboard 79 pinion 80 Sprocket 81 chain 82 Guide rod 83 Toggle screw 84 Tongue and groove connection 85 86

Claims (1)

Meissner & Bolte Patent Attorneys · European Patent Attomeys Bremen * Müpphen * - Meissner & Bolte, Hollerallee 73, D-2800 Bremen Applicant: Wolfgang Vogel Dipl.-Ing. Amselweg 7 2803 Weyhe-Leeste Your sign
Your ref. Your letter of Your letter of Our mark Our ref. Hans Meissner Dipi.-Ing. (until Erich Bolte ■ Dipl.-Ing. * RaIfM. Kern Dipl.-Ing. ** Dr. Eugen Popp- Dipl.-Ing .. Dipl.-Wirtsch.-Ina WoIfE. Sajda-Dipl.-Phys. ** Dr. Tarn v. Bülow Dipl.-Ing .. Dipl.-Wirisch.-Ir OFFICE BREMEN Hollerallee 73
D-2800 Bremen 1 Telephone: (04 21) 34 20 19 Telegrams: PAI MEIS BREMEN Telex: 246 157 method Dalum date VOG-1 1-DE June 24, 1983/9119 Motor vehicle Expectations 1. Motor vehicle, in particular a passenger vehicle, a chassis, a drive unit and a passenger compartment, characterized by t ~ T " that the passenger compartment (10) of the motor vehicle can be reduced in size when it is not in use. 2. Motor vehicle according to claim 1, characterized in that that essentially flat surfaces (side walls 18, rear wall 19, front wall 10) forming the passenger compartment (10) part 17 and roof 20) can be brought into approximately one plane with a floor pan (16) of the passenger compartment (10). 15th 3. Motor vehicle according to claim 1 and 2, characterized in that the floor pan (16) can be brought into an upright position with the parts folded into the plane of the same. 4 .. Motor vehicle according to claims 1 to 3, characterized in that the passenger compartment (10) forming Areas (side walls 18, front wall part 17, rear wall 19 and roof 20) with one another or with the floor pan (16) are pivotably and / or hingedly connected. 5. Motor vehicle according to claim 4 and one or more of the further claims, characterized in that that the passenger compartment (10) from the floor pan (16), one Front wall part (17), a rear wall (19), a roof (20) 15th and two side walls (18). 6. Motor vehicle according to claim 5 and one or more of the further claims, characterized in that ate the side walls (18) and the rear wall (19) are preferably hinged to the floor pan (16) with hinges (32) and can be folded into the floor pan (16) or into the plane of the same. 7. Motor vehicle according to claim 5 and one or 25 several of the other claims, characterized in that the side walls (18) and the rear wall (19) have dimensions have, which are the same size or smaller than the base area of the floor pan (16). 8. Motor vehicle according to claim 5 and one or several of the other claims, characterized in that the roof (20) preferably has a hinge (33) is hinged to the front wall part (17) and against the Rear of a front wall (21) of the same is pivotable. 35 9. Motor vehicle according to claim 8 and one or more of the further claims, characterized in that that the roof (20) has dimensions which are equal to or smaller than the area of the front wall (21). 10. Motor vehicle according to claim 5 and one or more of the further claims, characterized in that that the roof (20) and the rear wall 19) are detachably connected to one another. . 11. Motor vehicle according to claim 10 and one or more of the further claims, characterized in that that the roof (20) and the rear wall (19) by manually releasable locking members, in particular two brackets (42), are connected.
15th 12. Motor vehicle according to claim 5 and one or several of the further claims, characterized in that the side walls (18) and the rear wall (19) each consist of one connected to the floor pan (16) by hinges (32) the outer support frame (22, 26) and, in turn, doors (23) arranged so that they can be folded by hinges (25, 28) or a back flap (27) exist. 13. Motor vehicle according to claim 5 and one or several of the other claims, characterized in that on the contact lines or surfaces of the walls of the Passenger compartment (10) on both sides rubber profiles, in particular Seals (44) arranged for sealing and for Prevention of rattling noises. 30th 14. Motor vehicle according to claim 12 and one or more of the further claims, characterized in that that the roof (20) and the outer support frame (22,26) of the Side walls (18) and the rear wall (19) form-fitting 35 Have locking elements (pins 39; holes 40). 15. Motor vehicle according to claim 14 and one or more of the further claims, characterized in that that in the support frame (26) of the rear wall '(19) two bores (40) and on the support frame (22) of the side walls (18) each a bore (40) for the entry of corresponding pins (39) arranged under the roof (20) as locking elements are. 16. Motor vehicle according to claim 5 and one or more of the further claims, characterized in that that the side walls (18) and the rear wall (19) is assigned at least one energy storage element, which when folding the side walls (18) and the rear wall (19) can be prestressed for easier erection of the same. 17. Motor vehicle according to claim 16 and one or several of the other claims, characterized in that each side wall (18) and the rear wall (19) is a Torsion bar spring trained energy storage is assigned, the resilient rod of the torsion bar springs the hinge pins (66) of all the hinges (32,33) of the side walls (18) and the rear wall (19) forms and an angled, free end of each torsion bar spring is supported as a stop (67) on the floor pan (16), while the stop (67) formed by the second angled, free end attaches itself to each torsion bar spring the corresponding side wall (18) or rear wall (19) is supported. g ₀ 18. Motor vehicle according to claim 3 and one or more of the further claims, characterized in that the floor pan (16) with its folded-in side walls (18) and the folded-in rear wall (19) can be folded up against the front wall part (17). 19. Motor vehicle according to claim 18 and one or several of the other claims, characterized in that the floor pan (16) and the front wall part (17) around a horizontal axis of rotation preferably formed by two joints (37) arranged at a distance from one another are pivotally connected to each other. 20. Motor vehicle according to claim 1 and one or more of the further claims, characterized in that that the chassis consists of several chassis parts, which are assigned to the passenger compartment (10) and the drive unit (15). 21. Motor vehicle according to claim 20 and one or several of the other claims, characterized in that 15th that a (front) chassis part assigned to the drive unit (15) has a drivable front wheel (13). 22. Motor vehicle according to claim 20 and one or several of the other claims, characterized in that a (rear) assigned to the passenger compartment (10) Chassis part is movably arranged below the floor pan (16). 23. Motor vehicle according to claim 22 and one or 25 several of the further claims, characterized in that the rear undercarriage part assigned to the passenger compartment (16) has two rear wheels (12) mounted on an axle rocker (46). 24. Motor vehicle according to claim 23 and one or several of the further claims, characterized in that the axle rocker (46) can be pivoted under the floor pan (16) is arranged with a horizontal, transverse axis of rotation, which in the front area of the floor pan (16) 35 is arranged at a distance from the rear wheels (12). 25. Motor vehicle according to claim 23 and one or more of the further claims, characterized in that that the axle rocker (46) is U-shaped, with two parallel (free) arms (47) of the axle rocker (46) in the longitudinal direction of the motor vehicle lying at their ends carry the rear wheels (12) and the arms (47) are connected by an axis (48) forming the axis of rotation. 26. Motor vehicle according to claim 23 and one or more of the further claims, characterized in that that between the axle rocker (46) and the front wall part (17) at least one support member (leaf spring 51) is arranged is. , _ 27. Motor vehicle according to claim 26 and one or b several of the other claims, characterized in that two lateral supports are provided under the floor pan (16) Leaf springs (51) are arranged, on the one hand below the joints (37) between the front wall part (17) and floor pan (16) and, on the other hand, articulated behind the axis (48) of the axle rocker (46) on its arms (47) are articulated in such a way that the pivot points (50) or joints (37) and bearing points (52) between the front wall part Form (17), floor pan (16), axle rocker (46) and leaf springs (51) in about two Paral lelogramine. 28. Motor vehicle according to claim 27 and one or more of the further claims, characterized in that the length of the leaf springs (51) to the intended _on end positions of the front wall part (17) of the bottom tray (16) and the axle swinging arm (46) with the rear wheels (12) is coordinated in such a way that when the floor pan (16) is folded up into the vertical, the axle rocker (46) pivots in the opposite direction into an approximately vertical position, with _oc . at the same time the inclination of the front wall part (17) decreased. 29. Motor vehicle according to claim 28 and one or more of the further claims, characterized in that that the leaf springs (51) in the folded-down state of the floor pan (16) laterally next to the same and approximately centrally below the axis (48) of the axle rocker (46) are to support the floor pan (16) with the passenger compartment (10) on the axle swing arm (46). 30. Motor vehicle according to claim 29 and one or more of the further claims, characterized in that that the available spring deflection of the leaf springs (51) as a function of the load or weight of the passenger compartment (10) is adjustable. 31. Motor vehicle according to claim 23 and one or 15 several of the other claims, characterized in that. the leaf springs (51) on one on the axis (48) of the Axle rocker (46) arranged spacers, in particular a spacer block (55) each, with an eccentric Through-hole (57) for the axle (48) to change the free spring travel of the leaf springs (51) by rotating the spacer blocks (55) about the axis of the through hole (57). 32. Motor vehicle according to claim 31 and one or 25 several of the other claims, characterized in that the spacer block (55) consists of hard rubber and as Cuboid with four equally sized contact surfaces (outer surfaces 58) is formed, the outer surfaces (58) having different distances from the eccentric through hole (57). 33. Motor vehicle according to claim 23 and one or several of the other claims, characterized in that that the axle rocker (46) at least one at down-35 Folded passenger compartment (10) preloaded energy storage (torsion coil spring 68) is assigned to facilitate folding up the floor pan (16). l 34. Motor vehicle according to claim 33 and one or more of the further claims, characterized in that the energy store (torsion coil spring 68) between the Floor pan (16) and the axle rocker (46) is arranged to act. 35. Motor vehicle according to claim 34 and one or more of the further claims, characterized in that two torsion coil springs (68) serve as energy stores, which are mounted on the end region of the axle (48) adjoining the arms (47) of the axle rocker (46), wherein their spring ends on the one hand under the floor pan (16) and on the other hand support on the two arms (47). 15th 36. Motor vehicle according to claim 23 and one or several of the other claims, characterized in that between the axle rocker (46) and the passenger compartment (10) at least one shock absorber (69) for braking the folding movements of the floor pan (16) is arranged in such a way that that with folded and unfolded floor pan (16) the Shock absorber (69) has approximately the same length and the damping path of the shock absorber (69) has a swing through the same between the end positions. 37. Motor vehicle according to claim 36 and one or several of the other claims, characterized in that two shock absorbers (69) on the side of the floor pan (16) are arranged, on the one hand with the articulation point of the leaf springs (51) on the arms (47) of the axle rocker (46) and on the other hand approximately at a vertical distance above the axis of rotation of the axle rocker (46) with two upright side walls (18) of the floor pan (16) are articulated. 38. Motor vehicle according to claim 1 and one or more of the further claims, characterized in that that in the interior of the passenger compartment (10) folding seats (11), preferably two next to each other, are arranged. 39. Motor vehicle according to claim 38 and one or more of the further claims, characterized in that that the foldable seats (11) have a padded seat surface (60) by a foldable support (59) and is held by a foldable backrest (62). 40. Motor vehicle according to claim 39 and one or several of the further claims, characterized in that the support (59) is connected to a base plate by hinges (64) (30) the floor pan (16) and the seat (60) are connected and the backrest (62) is under the roof (20) of the passenger compartment (10) as well as on the back of the seat surface (60) is attached. 41. Motor vehicle according to claim 38 and one or more of the further claims, characterized in that dimension the length of the foldable backrest (62) in such a way 20 is that when the roof (20) is folded out, the seat surface (60), which is pivotable with respect to the support (59), is oriented approximately horizontally or is inclined slightly backwards. 42. Motor vehicle according to claim 1 and one or 25 several of the other claims, characterized in that the passenger compartment (10) and the drive unit (15) are movable are connected to each other. 43. Motor vehicle according to claim 42 and one or more of the further claims, characterized in that that the drive unit (15) relative to the passenger compartment (10) can be rotated about an axis of rotation, preferably with one Steering angle of at least 90 ° in opposite directions. 44. Motor vehicle according to claim 43 and one or more of the further claims, characterized in that that the drive unit (15) has a motor, in particular an internal combustion engine (71), which the front wheel (13) drives preferably directly via a chain drive. 45. Motor vehicle according to claim 44 and one or more of the further claims, characterized in that that the drive unit (15) has a (supporting) cover (73) aufwei st. 46. Motor vehicle according to claim 45 and one or more of the further claims, characterized in that that a fuel tank (74) serves as a drive for a the internal combustion engine (71) removable on the cover (73) of the drive unit (15) is arranged. 47. Motor vehicle according to claim 44 and one or several of the other claims, characterized in that that the drive unit (15) and the passenger compartment (10) by one on the cover (73) on the one hand and their Front wall part (17), on the other hand, attacking storage. (Steering tube 76) rotatably connected about an axis of rotation (75) are.
25th 48. Motor vehicle according to claim 47 and one or several of the other claims, characterized in that the bearing consists of one fixed to the cover (73) connected steering tube (76), which is connected by two 30 Rolling bearing (77) is mounted on the front wall part (17). 49. Motor vehicle according to claim 47 and one or more of the further claims, characterized in that that the steering tube (76) stops (67) are assigned which limit the maximum possible steering angle. 50. Motor vehicle according to claim 47 and one or more of the further claims, characterized in that that the drive unit (15) can be controlled by a steering system. 51. Motor vehicle according to claim 47 and one or several of the other claims, characterized in that that the steering consists of a steering wheel (79) arranged in the passenger compartment (10), which is connected to the steering tube (76) in drive connection is. 52. Motor vehicle according to claim 47 and one or several of the other claims, characterized in that the steering wheel (79) opposite the front wall part (17) ,, - is adjustable in height. 53. Motor vehicle according to claim 51 and one or several of the other claims, characterized in that the geared connection between the steering wheel (79) 2Q and the steering tube (76) preferably by a chain drive is formed, which is vertically displaceable together with the steering wheel (79). 54. motor vehicle for dismantling a motor vehicle, in particular according to claim 1 and one or more of the further claims, characterized in that initially a connection between the roof (20) and the rear wall (19) is released after slightly lifting the roof (20) the two side walls (18) and then the rear wall (19) folded approximately into the plane of the floor pan (16) is then folded over the roof (20) against the front wall (21) of the front wall part (17), and then the floor pan (16) with the folded side walls (18) and the rear wall (19) pivoted up against the front wall part (17) the parallelogram guide of the leaf springs (51) between the axle rocker (46) and the front wall part (17) the axle rocker (46) erects in the opposite direction to the floor pan (16) together with the original slightly inclined front wall part (17). Meissner & BoIte = L ίο ■ Patent attorneys